"MARIANA, Brazil -- "Three days after a massive mudflow and flood caused by ruptured dams at an iron ore mine, Brazilian authorities are still struggling to determine a cause or even recover the bodies of as many as 28 people possibly swept away in the torrent."

"House Natural Resources Chairman Rob Bishop (R-Utah) [Thursday] proposed comprehensive reforms to the Land and Water Conservation Fund in a bill that would send significantly more money to states and greatly curtail the purchase of new federal lands."

"Casualties from a collapsed dam at a Brazilian mine owned by Vale and BHP Billiton mounted on Friday after rescue teams worked through the night to find the dozens missing in mudslides that devastated a nearby village."

"For years, the company operating oil wells in New Mexico’s Aztec National Monument was exempt from being regulated by the National Park Service, which manages the site to protect ancient Pueblo structures. As a result, a dirt access road to one of the wells runs directly over buried ruins. A park archeologist once watched as a grader resurfacing the deeply rutted road exposed archeological remnants."

"President Obama [Tuesday] ordered five federal agencies to streamline regulations for offsetting environmental harm and to promote independent mitigation efforts."

"Democratic U.S. senators on Monday urged the Obama administration to reform the federal coal mine program to include costs of the fuel's carbon emissions and potentially raise royalties paid by companies that mine the fuel on public lands."

"Federal wildlife managers have determined that grizzly bear numbers in and around Yellowstone National Park have rebounded sufficiently to propose stripping the animals of U.S. Endangered Species Act protections in the months ahead, a spokesman told Reuters."

"Tar sands mining companies have continued to withdraw water from the Athabasca River in northeastern Alberta despite low flows that have made navigation difficult for river users downstream and left Fort Chipewyan's harbor dry."